Research Article
Quasistatic Seismic Damage Indicators for RC Structures from Dissipating Energies in Tangential Subspaces
Table 1
Limit states and damage levels according to FEMA 273.
| ā | Structural limit states | Damage levels | Damage indices |
| ND | No damage, virgin structure | 0 | 0.00 | IO | Immediate occupancy | I | 0.05 | ID | Incipient damage | ā | 0.10 | LS | Life safety threatens | II | 0.20/0.25 | CP | Collapse prevention | III | 0.40/0.50 | IC | Incipient collapse | IV | >0.90 |
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